The hundred bags of stones disappeared within a few minutes. Not even five minutes since the first person threw the stone, all the stones were mostly on the platform. The people tried to pick more stones around the platform and threw them again at the four rebel army leaders.
The four leaders were Epic Rank, so the stones barely injured them. The idea behind stoning the four leaders was for the citizens to vent out their anger and resentment, not kill them. Also, it was a humiliation for the four leaders before their death. Those stones were useless against the four leaders as the stones just left scratches on them.
Scratch after scratch from the stones, the four leaders' faces were covered in blood from the scratches, making them look unrecognizable. After ten minutes, people stopped looking for more stones as they started shouting.